Problem "Mu4.1/4.02 cursor keys up/down
Chromebook/Linux mouse imput (probably all OS's)
If you have not noticed, when you hit up/down arrow keys , in a multiple page score, and nothing has been selected you will be sent back to page one. Not pleasant when working in the 60s or 70s of your score. You might have thought you had selected something or just hit one by accident.